There's a cute girl in a few of my classes

I had a rough week, and forgot to do my science homework because other classes stressed me out, and she helped me out with it quickly so I didn't get in trouble.

Then, this week, I had to leave early during history because cramps got bad. So I missed a science worksheet and notes, so the girl just came over and started to explain the notes to me and let me copy off hers.

But I'm pretty sure she's straight and likes another guy. I'm such a gay shit. I get crushes too easily.